Pyroprocessing Technologies
From preheaters to clinker coolers, the industry's requirements for quality, maximum performance, minimum costs, and low emissions are more than ever decisive for the competitive situation.
Preheater
Multistage cyclone preheaters with integral calciner and tertiary air duct are indispensable components of modern kiln lines. Polysius offers innovative preheater/calciner concepts that are nevertheless technically mature for the production of white cement and gray cement – both for new plants and for plant conversions. They are tailored to the desired production capacity, no matter whether it is less than 1,000 or more than 12,000 metric tons per day.
prepol® SC - Step Combustor
In comparison with a standard calciner loop, the prepol® SC opens up a new dimension in the alternative fuels that can be burned. The residence time of about 1,000 seconds particularly boosts solid-phase combustion and improves the burnout of complicated fuels in short calciner loops. Ordinary calciner technology, in contrast, has only up to seven seconds' residence time.
polysius® solutions for rotary kilns
polguide - Kiln Drive System
Optimal load on the kiln girth gear and pinion is achieved by means of a swivelling baseplate with a guided self-aligning pinion. This mechanism compensates for operationally-related meshing interference between the pinion and girth gear at all times.
To polguide - Kiln Drive System
Kiln bearing replacement
With the new concept, roller stations can be modified to the globally-proven polysius® roller stations irrespective of the make of rotary kiln – particularly in the case of problems with hot bearings or broken axles at rotary kiln roller stations.
Splined and loose tyre fastening
There are two different systems that can be used for fastening kiln tyres to a kiln shell: the splined or the loose tyre fastening system. The splined tyre fastening system transfers the load to be supported from the rotary kiln shell into the kiln tyre by means of a form-fit connection. This type of system ensures that the kiln shell is kept as round as possible, resulting in less stress for the brick lining.
Kiln outlet segment
The protective segment at the kiln outlet separates the kiln process from the surroundings. The aim is to provide a seal against false air, with the highest process reliability and availability.
To Kiln inlet and outlet system
Pneumatic seal
The pneumatic inlet and outlet seals isolate the kiln process from the environment. The aim is to seal against false air, which has a negative impact on the process, the final quality of the product, and energy consumption.
To Kiln inlet and outlet system
Graphite seal
Inlet and outlet graphite seals separate the kiln process from the environment. They are designed to seal off the kiln process from leakage air while ensuring maximum process reliability and availability. This is an alternative to pneumatic sealing and is often used when converting thirdparty seals and kilns.
polflame® - Clinkering Zone Burner
Thanks to its highly efficient primary air nozzles, the burner can be optimally adjusted to the ignition behavior and burnout performance of the individual fuels during operation. polflame® VN meets all process-technology requirements – from easily flammable fuels such as oil, natural gas, brown coal or hard coal, to petcoke and anthracite coal and entrainable substitute fuels.
polytrack® - Clinker Cooler
We offer various possibilities so that you can achieve the highest possible cooling capacity and reduce energy consumption. Our experts can convert your entire cooler or replace only the aeration units. The aim is to improve clinker cooler performance. It is also possible to modify a cooler made by a different manufacturer.